Math Problem Statement

Find the slope of each line defined below and compare their values. Equation of Line A: y - 3 = 1/3(x - 3). Graph of Line B: Determine the slopes and compare.

Solution

Let's determine the slopes of both lines.

Step 1: Find the Slope of Line A

The given equation of Line A is in point-slope form:

y3=13(x3)y - 3 = \frac{1}{3} (x - 3)

The slope-intercept form is:

y=13x1y = \frac{1}{3}x - 1

From this equation, the slope of Line A is 13\frac{1}{3}.


Step 2: Find the Slope of Line B

By observing the graph, Line B passes through points (-6,6) and (6,-6). Using the slope formula:

m=y2y1x2x1m = \frac{y_2 - y_1}{x_2 - x_1}

m=666(6)=1212=1m = \frac{-6 - 6}{6 - (-6)} = \frac{-12}{12} = -1

Thus, the slope of Line B is 1-1.


Step 3: Compare the Slopes

Since 13\frac{1}{3} is greater than 1-1, we conclude:

13>1\frac{1}{3} > -1

Thus, the correct answer is:

  • The slope of Line A is 13\frac{1}{3}
  • The slope of Line B is 1-1
  • The slope of Line A is greater than the slope of Line B.

Would you like further details on any step?


Related Questions:

  1. How do you convert an equation from point-slope form to slope-intercept form?
  2. What are the different forms of linear equations and when to use them?
  3. How do you find the slope of a line given two points?
  4. What does the sign of a slope indicate about a line's direction?
  5. How do parallel and perpendicular slopes relate to each other?

Tip: A positive slope means the line rises from left to right, while a negative slope means it falls from left to right.

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Math Problem Analysis

Mathematical Concepts

Algebra
Linear Equations
Slope

Formulas

Point-slope form: y - y1 = m(x - x1)
Slope formula: m = (y2 - y1) / (x2 - x1)

Theorems

Slope-intercept form

Suitable Grade Level

Grades 8-10